[1]LI Jun,TIAN Chao,YANG Xin-bing.Hydrological Effects of Typical Forest Litters in the Mulan Forestry Administration of Hebei Province[J].Research of Soil and Water Conservation,2011,18(04):192-196.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 04
Page number:
192-196
Column:
Public date:
2011-08-20
- Title:
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Hydrological Effects of Typical Forest Litters in the Mulan Forestry Administration of Hebei Province
- Author(s):
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LI Jun1,2, TIAN Chao1, YANG Xin-bing1
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1. Agricultural University of Hebei, Baoding, Hebei 071000, China;
2. Mulan Forestry Adminstration of Hebei Province, Weichang, Hebei 068450, China
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- Keywords:
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Mulan forestry administration; litter; hydrological effect
- CLC:
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S715
- DOI:
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- Abstract:
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Litter is the second active layer of the forest hydrological effects, which is of great significance in the regulation of forest hydrology. A preliminary study of hydrological effects of litter layer was carried out in six kinds of typical and natural forest stands in the Mulan forestry administration. The result shows: (1) The litter total storage capacity of Larix principic-rupprechtⅡ-B. platyphylla-B. davurica is the biggest and up to 30.47 t/hm2, meanwhile it has the highest maximum water holding capacity (63.57 t/hm2);the maximum water holding rate of B. platyphylla-B. davurica is the biggest and up to 257.80%; (2) Without decomposition and semi-decomposition litter reached both saturation in 12 h, water holding capacity and soaking time demonstrated significant Logarithmic relationship (Q=aln (t)+b);water absorption rate of undecomposed and semi-decomposed litter are both faster at the first hour, then the rate of decline gradually slowed down after 6 h, the relationship of absorption rate and immersion time showed power function (V=ktn); (3) The modified interception amount of Larix principic-rupprechtⅡ-B. platyphylla-B. davurica is the strongest and up to 48.60 t/hm2, while Populus davidian-B. davurica-Quercus mongolica is the worst and up to 16.47 t/hm2. It shows that the soil and water conservation capacity of Larix principic-rupprechtⅡ-B. platyphylla-B. davurica is the strongest, which means the forest is healthy. However, Populus davidian-B. davurica-Quercus mongolica has the weakest capacity, which means the health need to be improved.